20570500252 has 48 divisors (see below), whose sum is σ = 38150784000. Its totient is φ = 9677828160.

The previous prime is 20570500231. The next prime is 20570500253. The reversal of 20570500252 is 25200507502.

It is a self number, because there is not a number n which added to its sum of digits gives 20570500252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20570500253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13777218 + ... + 13778710.

It is an arithmetic number, because the mean of its divisors is an integer number (794808000).

Almost surely, 2^20570500252 is an apocalyptic number.

It is an amenable number.

20570500252 is a deficient number, since it is larger than the sum of its proper divisors (17580283748).

20570500252 is a wasteful number, since it uses less digits than its factorization.

20570500252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2626 (or 2624 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

The spelling of 20570500252 in words is "twenty billion, five hundred seventy million, five hundred thousand, two hundred fifty-two".